Is it common to use the same shader for nearly all props in a game?

Hi,
I recently started using custom shaders in Unity and I was wondering whether it is common for games to use the same shader for most props in a game. For example, I made a toon/Cel shader in Shader Graph. Since I want the entire game to use cel shading, I feel like I really only need this one shader (except for special effects or water), that will be applied to nearly every solid object in the game. Then materials will take care of albedos, normal maps, specific properties, etc.

Is this common way to work?

 

This is your project, its up to you to use what ever shaders you want, or fit your game. But remember, not all shaders are equally performant. So compare results to effect...

 

Yes.Very common.